Apple threw a wrench into the digital ad industry, and marketers are bracing for impact

Apple's new software update within iOS 27 has caused concern in the digital advertising industry. The update blocked several major adtech firms from using advertising identifiers across browsers on Apple devices. In some cases, it also disrupted their ability to serve ads to Apple users on the web. The blocking occurred through WebKit, the technology that powers Safari and other browsers on iPhones.

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